GUANO-2 Higher and Higher!

Results

Launching
on a wind-less morning meant that the
package was successfully tracked for almost 4 hours in total.

As can be seen in the graph at right, data
were recorded from the cosmic ray (CR) detector as the balloon rose to
just over 35 km (green triangles), then on the way down (purple
circles).

The CR counts increase to about 20 km, then
remain approximately constant until about 25 km. At this height,
most of the CRs detected are from secondary particle showers.

Above 26 km, the CR counts begin to decrease
as more of the CRs detected are primary particles and fewer
secondary showers have been created. The
first GUANO flight did not show this
decrease because it did not go high enough.